{"title":"Comparison of measures of time-frequency distribution optimization","authors":"Stanislav Pikula, P. Benes","doi":"10.1109/ICUMT.2016.7765378","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765378","url":null,"abstract":"This article describes the problems of time-frequency representation optimization. The goal is to achieve compromise between good resolution and reduced cross terms. The quantitative measures used for this optimization are described. For the case of a simulated signal a measure based on mean squared error is proposed. The proposed method compares an optimized result to the ideal representation obtained as sum of Wigner-Ville distributions of mono-component signals. Three simulated signals are used to compare optimization of Choi-Williams Distribution, Gabor spectrogram, Short-time Fourier transform and S-method. The optimization is realized on the basis of four quantitative measures: Rényi entropy, Jones-Parks measure, Stanković measure and proposed method. Results show problematic use of Jones-Parks measure for optimization and comparable optimization of all tested time-frequency distributions by means of three usable measures. For practical use with real signal, S-method with Rényi or Stanković measure is recommended.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"127 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129850323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wissam Abdessamad, Y. Nasser, K. Kabalan, O. Bazzi
{"title":"On the performance evaluation of MIMO-SCMA systems","authors":"Wissam Abdessamad, Y. Nasser, K. Kabalan, O. Bazzi","doi":"10.1109/ICUMT.2016.7765346","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765346","url":null,"abstract":"Massive multiple-input multiple-output (MIMO) systems is an emerging technology that is paving its way into wireless communication systems. Massive MIMO consists of tens or hundreds of antennas, which will result in an increase in capacity, reliability and performance. However, massive MIMO is facing many obstacles in terms of complexity due to the large number of antennas. In this paper, sparse code multiple access (SCMA) is introduced in MIMO systems. The interests of MIMO- SCMA resides in the need of lower number of antennas while preserving the system capacity thanks to the overload in SCMA. In this paper the performance of this system is studied in terms of throughput and both coded and uncoded bit error rate (BER).","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128348910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Vunder, A. Ushakov, O. Nuyya, Ruslan O. Peshcherov
{"title":"Free motion of sequence of similar aperiodic blocks","authors":"N. Vunder, A. Ushakov, O. Nuyya, Ruslan O. Peshcherov","doi":"10.1109/ICUMT.2016.7765389","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765389","url":null,"abstract":"In the theory and practice of control systems design a model of the desired behavior which state matrix has the Newton's binary distribution of eigenvalues has found its widespread usage. Using the transfer functions apparatus in a structural representation of these systems yields systems in the form of a sequence of similar first order aperiodic blocks. The transient response of the system is characterized by the absence of overshoot. The situation changes considerably if the control system with a binomial distribution of eigenvalues is in a nonzero initial state. The system in the form of the sequence of similar first order aperiodic blocks mathematically turns out to be a three-parameter system with the following parameters: the absolute value of the negative real number, its multiplicity which is equal to the order of the system and the transfer coefficient. It was determined that in the three-parameter system, which is a present work research object, peaks of the state vector norm in the free motion trajectories may occur for any values of the absolute value of the negative eigenvalue.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121880616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Piecewise-polynomial curve fitting using group sparsity","authors":"Michaela Novosadová, P. Rajmic","doi":"10.1109/ICUMT.2016.7765379","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765379","url":null,"abstract":"We present a method for segmenting one-dimensional signal, whose segments are modeled as polynomials, and which is corrupted by an additive noise. The method is based on sparse modeling and its formulation as a convex optimization problem is solved by proximal algorithms. We perform experiments on simulated data, discuss the results and suggest future directions that could lead to even better results.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123475023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shuja Ansari, T. Boutaleb, C. Gamio, S. Sinanović, I. Krikidis, Marvin Sánchez
{"title":"Vehicular Safety Application Identifier algorithm for LTE VANET server","authors":"Shuja Ansari, T. Boutaleb, C. Gamio, S. Sinanović, I. Krikidis, Marvin Sánchez","doi":"10.1109/ICUMT.2016.7765229","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765229","url":null,"abstract":"Vehicular communications have been an incentive for driver safety and ultimately autonomous smart vehicles. These vehicular networks have strict requirements with transmission frequency, range, and delay. From previous contributions, Long Term Evolution (LTE) has been found to meet the requirements for vehicular networks. Extensive realistic system level simulations, including multipath and multi cell environments, have been carried out to evaluate the performance of LTE networks for vehicular communications. This paper improves upon previously contributed simulations by introducing Safety Application Identifier along with an algorithm that implements differentiated Quality of Service (QoS) for different safety applications that are handled by the vehicular server located within the LTE core network. Results show that the probability of end-to-end delay below 100 ms increases by 20%, downlink goodput of the system improves reducing the amount of vehicular application traffic, and eventually the number of downlink flows is reduced by 60%; improving network capacity. Moreover, with the implementation of the proposed algorithm, high QoS can be achieved for vehicular safety applications in terms of delay and packet delivery.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115749655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developing a movement algorithm for a wheeled robot moving over a rough terrain","authors":"V. Mazulina, Y. Litvinov, A. Bushuev","doi":"10.1109/ICUMT.2016.7765224","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765224","url":null,"abstract":"This paper presents control algorithm of the wheeled robot moving along a given route on a rough terrain. The robot operates in the autonomous mode. Analysis of the surrounding space is carried out by vision systems, ultrasonic sensor, gyroscope and GPS module. Data which have been taken from sensors, are used by built-in processor for building a path detour obstacles and returning to the originally specified route, as well as for creating the local map of the area.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123880006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improved bounds on secrecy capacity in twin-code cloud storage framework","authors":"N. Marina, Natasha Paunkoska, Aneta Velkoska","doi":"10.1109/ICUMT.2016.7765384","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765384","url":null,"abstract":"Security and reliability in cloud storage networks are important features for achieving system efficiency. An explicit construction of regenerating codes that perform reliability, availability and security of the stored data, and at the same time perform efficient node repair is already provided. Understanding and achieving the optimal tradeoff among the above listed features is of great importance for improving the functioning in all cloud storage systems. Therefore in this work, we propose a new code construction that includes an outer and an inner code in the process. The outer code, Gabidulin code, as a pre-coding step achieves improved security level in the storage system and the inner one, Twin-code framework, performs efficient distribution, reconstruction and repair process. The proposed code is resilient to an eavesdropper model and gives better results regarding the achievements when are used the minimum bandwidth regenerating (MBR) and minimum storage regenerating (MSR) codes, respectively.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125136860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hybrid parallel neuro-controller for multirotor unmanned aerial vehicle","authors":"A. Bobtsov, A. Guirik, M. Budko, M. Budko","doi":"10.1109/ICUMT.2016.7765223","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765223","url":null,"abstract":"This paper provides a new method of building a flight control system for multirotor unmanned aerial vehicle based on hybrid parallel neuro-controller that uses radial basis function artificial neural network. Activation functions of hidden layer neurons are optimized in a way that allows for online training. We show that proposed hybrid neuro-controller is more effective than traditional manually configured PID controller.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126878902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Remote monitoring infrastructure for IEC 61499 based control software","authors":"M. Wenger, Alois Zoitl, J. Blech, I. Peake","doi":"10.1109/ICUMT.2016.7765387","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765387","url":null,"abstract":"In this paper, we present our work on monitoring of control software behavior for PLCs. In particular, we are looking at IEC 61499-based software specifications. Monitoring is done remotely, i.e., the interface behavior of function blocks is streamed to a cloud-based service. Specifications are realized using formal languages such as 1) regular expressions, 2) timed automata, 3) temporal logic. Monitors can be automatically generated from these languages. Using our specifications, we are able to detect abnormal behavior in control software such as timing changes that can, e.g., show the presence of memory leaks or a virus. We demonstrate our ideas using an example.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127127541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aleksandr Semenov, Igor Zakhlebin, A. Tolmach, S. Nikolenko
{"title":"Pseudo-bimodal community detection in Twitter-based networks","authors":"Aleksandr Semenov, Igor Zakhlebin, A. Tolmach, S. Nikolenko","doi":"10.1109/ICUMT.2016.7765382","DOIUrl":"https://doi.org/10.1109/ICUMT.2016.7765382","url":null,"abstract":"We present a novel approach to clustering Twitter users and characterizing their preferences (political or otherwise) based on the features of communication networks extracted from their tweets. We make the assumption that central users in the network, the so-called “top”, or “power” users, set the agenda, while other, “regular” users often retweet and/or mention their tweets, and behavior towards “top” users differs from the behaviour of “regular” users towards each other. We show that network clustering on Twitter can be observed more distinctively on unimodal projections of specially created bimodal networks (bipartite graphs), where top users in the networks are artificially separated into a second part according to node centrality measures. We evaluate our approach on Twitter-based datasets of mentions and retweets related to Russian political protests and a benchmark English-language Twitter dataset with distinctly polarized clusters; we compare various centrality measures and show that our algorithm yields high modularity in the resulting community structure.","PeriodicalId":174688,"journal":{"name":"2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126199159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}